It's still an easy way to share images of oneself and ones's spouse. The people citilife is interested in sharing those photos with probably are friends with both citilife & citilife's wife, so they come through fine.

Also, leaving Facebook doesn't do much to remove pictures of you. On my feed, most people are posting pictures of their family and friends (& pets & sometimes food) moreso than of themselves. To get your face off of facebook you need to get your friends & family off of facebook. (& your pets since evidently they can have accounts and post pictures).